package com.atguigu.gulimall.order.web;

import com.atguigu.common.exception.NoStockException;
import com.atguigu.gulimall.order.service.OrderService;
import com.atguigu.gulimall.order.vo.OrderConfirmVo;
import com.atguigu.gulimall.order.vo.OrderSubmitVo;
import com.atguigu.gulimall.order.vo.SubmitOrderRespVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.concurrent.ExecutionException;

/**
 * @author 马迎迎
 * @Title: OrderWebController
 * @Package com.atguigu.gulimall.order.web
 * @Description: TODO(添加描述)
 * @date 2021年05月29日 13:21
 */
@Controller
public class OrderWebController {
    @Autowired
    private OrderService orderService;
    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        OrderConfirmVo orderConfirmVo =orderService.confirmOrder();
        model.addAttribute("orderConfirmData",orderConfirmVo);
        return "confirm";
    }

    /**
     * 下单功能
     * @param submitVo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo submitVo, Model model, RedirectAttributes redirectAttributes){
        try {
            System.out.println("订单提交的数据："+submitVo);
            //创建订单，验令牌，验价格，锁库存...
            SubmitOrderRespVo orderRespVo = orderService.submitOrder(submitVo);

            if(orderRespVo.getCode()==0){
                model.addAttribute("submitOrderResp",orderRespVo);
                //下单成功，来到支付选择页
                return "pay";
            }else {
                String msg="下单失败:";
                switch (orderRespVo.getCode()){
                    case 1:{
                        msg+="订单信息过期，请刷新再次提交";
                        break;
                    }
                    case 2:{
                        msg+="订单商品价格发生变化，请确认后再次提交";
                        break;
                    }
                    case 3:{
                        msg+="库存锁定失败，商品库存不足";
                        break;
                    }
                }
                redirectAttributes.addFlashAttribute("msg",msg);

                //下单失败，回到订单确认页，重新确认订单信息
                return "redirect:http://order.gulimall.com/toTrade";
            }

        } catch (Exception e){
            if (e instanceof NoStockException){
                String message = e.getMessage();
                redirectAttributes.addFlashAttribute("msg", message);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }

    }
}
